This will pertain to tables prior to 2012 without a green board only.
TO GET MAXIMUM PRESSURE for any feature of the table it is recommended that the pressure pedal be used to let enough air blow out of the system so that the compressor pressurizes the system to its maximum factory setting.
IMPORTANT: Hill Laboratories recommends that the pressure switch not be adjusted.
It is factory set at a maximum pressure that is suitable for all the components in this system.
-Any adjustment is at your own risk-

To increase pressure, turn the nut clockwise.